x^2-51x-630=0

Simple and best practice solution for x^2-51x-630=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x^2-51x-630=0 equation:


Simplifying
x2 + -51x + -630 = 0

Reorder the terms:
-630 + -51x + x2 = 0

Solving
-630 + -51x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '630' to each side of the equation.
-630 + -51x + 630 + x2 = 0 + 630

Reorder the terms:
-630 + 630 + -51x + x2 = 0 + 630

Combine like terms: -630 + 630 = 0
0 + -51x + x2 = 0 + 630
-51x + x2 = 0 + 630

Combine like terms: 0 + 630 = 630
-51x + x2 = 630

The x term is -51x.  Take half its coefficient (-25.5).
Square it (650.25) and add it to both sides.

Add '650.25' to each side of the equation.
-51x + 650.25 + x2 = 630 + 650.25

Reorder the terms:
650.25 + -51x + x2 = 630 + 650.25

Combine like terms: 630 + 650.25 = 1280.25
650.25 + -51x + x2 = 1280.25

Factor a perfect square on the left side:
(x + -25.5)(x + -25.5) = 1280.25

Calculate the square root of the right side: 35.780581326

Break this problem into two subproblems by setting 
(x + -25.5) equal to 35.780581326 and -35.780581326.

Subproblem 1

x + -25.5 = 35.780581326 Simplifying x + -25.5 = 35.780581326 Reorder the terms: -25.5 + x = 35.780581326 Solving -25.5 + x = 35.780581326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25.5' to each side of the equation. -25.5 + 25.5 + x = 35.780581326 + 25.5 Combine like terms: -25.5 + 25.5 = 0.0 0.0 + x = 35.780581326 + 25.5 x = 35.780581326 + 25.5 Combine like terms: 35.780581326 + 25.5 = 61.280581326 x = 61.280581326 Simplifying x = 61.280581326

Subproblem 2

x + -25.5 = -35.780581326 Simplifying x + -25.5 = -35.780581326 Reorder the terms: -25.5 + x = -35.780581326 Solving -25.5 + x = -35.780581326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25.5' to each side of the equation. -25.5 + 25.5 + x = -35.780581326 + 25.5 Combine like terms: -25.5 + 25.5 = 0.0 0.0 + x = -35.780581326 + 25.5 x = -35.780581326 + 25.5 Combine like terms: -35.780581326 + 25.5 = -10.280581326 x = -10.280581326 Simplifying x = -10.280581326

Solution

The solution to the problem is based on the solutions from the subproblems. x = {61.280581326, -10.280581326}

See similar equations:

| X+2x=12(X+2x) | | 12x+8=101 | | 84/12-8=-1 | | -2u+14=4 | | 0.12+8.00=c | | 6.7+12m-9.3=6.1 | | 116666.667=x^2-333.333x | | -.5n+5=6 | | 84/-8 | | 3.4=25.8-7u | | 7n^2-36n+5=0 | | sin(72.1)=9.51594 | | 144=-12t | | (3t+10)=(3t-15) | | X=X+2x+12*2x | | 5-3c=c | | 0=x^3+x^2-4x-4 | | -4.4-2=5.5s-4.2 | | X^3-196x+66=0 | | 36/7-1 | | 5d-2=2d+6d | | f(n)=68-2(n-1) | | y=x^2+px+q | | y=x^2+px+q | | sin(72.1)=0 | | 1.5(90+2)15=2b-9 | | -(p-8)= | | b+3.4=3.2 | | f(n)=6+3(n-1) | | 6.1n=9.3-3.2n | | X+2x+12(X+2x)=y | | k^2-6k-3=4 |

Equations solver categories